Robert Comsol wrote:
It's a little pity they didn't continue this kind of earnestness in TNG, now that the remastering in HD reveals all these little insike jokes, both the silly and the better ones.
Back in the '60s the idea of home video was unheard of. By the time TNG rolled around, home video was commonplace. One would expect the later
producers to be even more conscientious about freeze-frame details. But then again, maybe some of the next generation prop creators were hoping this stuff would be seen and noticed one day.
(With today's technology, one could seamlessly insert or remove anything during "remastering"—cover up continuity errors and other blunders, etc. Ben Finney strikes again!)